CN105862725A - Underground construction preliminary grouting waterproof and anti-seepage supporting technology - Google Patents
Underground construction preliminary grouting waterproof and anti-seepage supporting technology Download PDFInfo
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- CN105862725A CN105862725A CN201610206494.8A CN201610206494A CN105862725A CN 105862725 A CN105862725 A CN 105862725A CN 201610206494 A CN201610206494 A CN 201610206494A CN 105862725 A CN105862725 A CN 105862725A
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- area
- filled
- waterproof
- construction
- curtain
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses an underground construction preliminary grouting waterproof and anti-seepage supporting technology. Underground curtain holes and grouting holes are constructed in the design position; firstly, pressure injection of high pressure air or high-pressure water jet is performed in drilled holes, so that flabby substances with which cracks are filled are completely washed away; and then pressure injection of pollution-free quick-set materials specific to large cracks and high water heads is performed. A treated troubled section can meet the basic requirement of waterproofing and seepage-proofing according to the design requirement; besides, as the materials adopted for filling of the cracks are quite high in cohesiveness and high in strength, the cohesive force of the treated flabby soil layer or crumbly strata is improved, the stability of a top plate and side walls can be maintained in the excavation process, and the supporting effect is achieved.
Description
Technical field
The present invention relates to underground engineering construction technical field.
Background technology
Along with high speed development and the urgent needs of national defense construction of China's economic construction, the exploitation application to the underground space has had quite
Scale, such as siphonal culvert, tunnel, national defence air defense and civil air defense constructions and installations, and China's Ye Shi world tunnel and underground engineering at most,
Country with fastest developing speed.And be to ensure underground engineering antiseep in construction and supporting safety, and the normal peace after completion
Full use, reduces maintenance cost, and waterproof, antiseepage and the support work of resolving underground engineering are crucial.
Summary of the invention
Technical problem solved by the invention is to provide a kind of underground engineering pre-pouring grout waterproof, seepage control support technology, make soft layer or
Broken rock cohesive strength after treatment is strengthened, it is possible to keeps top board and sidewall in digging process stable, reaches supporting effect.
The technical solution used in the present invention is, underground engineering pre-pouring grout waterproof, seepage control support technology, comprises the following steps:
A. mapping sub-surface construction area, verifies soft layer or crushed zone region, and construction curtain is by soft layer or crushed zone region
It is isolated into an area to be filled, prepares cement grout simultaneously；
B. be inserted into Grouting Pipe to area to be filled, the excavation border of the mouth of pipe design to be crossed of Grouting Pipe, the spacing of Grouting Pipe is little
In 2m, by Grouting Pipe pressure injection Fast Setting Cement Slurry liquid in area to be filled；This rapid hardening waterproof special material early strength is strong with final
Spend relatively light water mud and all improve 10-20%；
C. after slip casting completes, grout cures forms grouting and reinforcing body, when grouting and reinforcing body intensity or volume are inadequate, repeats step
a-b。
Between step a and step b, add step a ': the area to be filled construction drill in curtain, passes through bore pressuring injection
Pressure-air or carry out high-pressure water jet, rinses well the weak material of filling fracture.
Allow the place of boring on ground, in step a, the construction of curtain is faced down rotary-spraying construction by ground, by soft layer or broken
Broken band is isolated into an area to be filled；Step a ' in, face down from ground and offer boring, high to area to be filled pressure injection by boring
Press air or carry out high-pressure water jet, the weak material of filling fracture is rinsed well.
Do not allow the construction area of boring on ground, in step a, curtain of constructing in ground in tunnel excavation, curtain will
Soft layer or crushed zone are isolated into an area to be filled, and the quantity of area to be filled is one or more, each area to be filled all quilts
One group of curtain is individually isolated.
After completing step c, when needing to repeat step b, the gradually intensification that Grouting Pipe is inserted to construction area.
After completing step c, need repeat step b time, Grouting Pipe to construction area insert more and more shallow.The present invention has
Benefit effect is, (1), can waterproof, antiseepage, support issues comprehensively be solved in the underground engineering built, and effective shorten and saves
Duration；(2), its cost is only the 1/3 1/2 of traditional handicraft；(3), supporting safety problems such as caving in can the most effectively be solved；
(4), later maintenance expense is reduced；(5), can be widely applied to urban construction transformation, traffic engineering, civil air defense constructions and installations.
Accompanying drawing explanation
Fig. 1 is embodiment one form of construction work floor map.
Fig. 2 is the generalized section that Fig. 1 is corresponding.
Fig. 3 is embodiment two form of construction work generalized section.
Figure is labeled as: 1-curtain, 2-grouting and reinforcing body, 3-mud jacking hole, 4-soft layer, 71-ground, 72-tunnel border,
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
The underground engineering pre-pouring grout waterproof, seepage control support technology of the present invention, comprises the following steps:
A. mapping sub-surface construction area, verifies soft layer or crushed zone region, and under construction ground, curtain is by soft layer or crushed zone
Zone isolation becomes an area to be filled, prepares cement grout simultaneously.
B. can choose whether to carry out according to situation on the spot the step for, the area to be filled drilling construction in curtain, by boring
Inwardly pressure injection pressure-air or carry out high-pressure water jet, rinses well the weak material of filling fracture；
C. be inserted into Grouting Pipe to area to be filled, the excavation border of the mouth of pipe design to be crossed of Grouting Pipe, the spacing of Grouting Pipe is little
In 2m, by Grouting Pipe inside pressure injection rapid hardening serosity；This rapid hardening waterproof special material early strength and final strength relatively ordinary cement
Slurry all improves 10-20%；
D., after slip casting completes, grouting and reinforcing body is formed, when grouting and reinforcing body intensity or volume are inadequate through 20-30 hour grout cures
Time, repeat step a-b-c.
Embodiment one: forward pre-pouring grout waterproof, seepage control supporting, it is adaptable to processing position ground space allow construction drill tunnel from
The direct pre-pouring grout in ground, then tunneling.
As it is shown in figure 1, in the shallower place of buried depth, in step a, the construction of curtain is faced down rotary-spraying construction by ground, by weakness
Soil layer or crushed zone are isolated into an area to be filled, and the band fill area that curtain is surrounded is greater than the excavation boundary of design to be onstructed,
Typically to have more more than excavation boundary 2m；In step b, face down from ground and offer boring, high to area to be filled pressure injection by boring
Press air or carry out high-pressure water jet, the weak material of filling fracture is rinsed well, the generally mud filling that can rinse well
The clay in crack, rubble etc..The existence of these materials, affects the intensity after injecting cement paste solidification and anti-permeability performance, and serosity fills with ground
Gap in Ceng, adds intensity, and has blocked penetrating passage.Add triethanolamine, calcium sulfate, sodium formate, hydroxyl carboxylic
The cement grouts of chemical compositions such as acid, can solidify at short notice, and not separating water, it is to avoid produce again new after solidification
Permeation pathway.
Embodiment two: reversely pre-pouring grout waterproof, seepage control supporting, it is adaptable to processing position ground space does not allows boring downwards of constructing
Tunnel, as it is shown on figure 3, excavating jacked piles with small section top, to periphery drilling construction radially, hole depth 2-3 rice, reality
Executing insertion Grouting Pipe, inwardly perfusion rapid hardening serosity, forms one and has certain thickness hoop reinforcement band, then strengthen hole depth,
Grouting Pipe gos deep into 4-6 rice the most again, continues slip casting, forms a bigger reinforcing band, reinforces band constantly from level to level to extending out
, until reinforcing band to surround whole tunnel section, when intensity and the bearing capacity of reinforcing body meet construction requirement, tunnel can be carried out
Full-face tunneling.
Embodiment three, identical with embodiment two usable condition, but constructing of back-up coat can also reversely be constructed, first by slip casting
Pipe inserts the bigger degree of depth, forms one bigger reinforcing band, it is to avoid the most permeable, the probability that caves in, then in this reinforcing
Closer to the direction slip casting of tunnel in band, along with reinforcing band is closer to tunneling, the intensity of integral reinforcing band is bigger, infiltration
Probability less be more easy to check.Band to be reinforced covers after treating to come on tunnel excavation, and intensity, then excavates tunneling boring tunnel.
Claims (6)
1. underground engineering pre-pouring grout waterproof, seepage control support technology, comprises the following steps:
A. mapping sub-surface construction area, verifies soft layer or crushed zone region, and construction curtain is by soft layer or crushed zone region
It is isolated into an area to be filled, prepares cement grout simultaneously；
B. be inserted into Grouting Pipe to area to be filled, the excavation border of the mouth of pipe design to be crossed of Grouting Pipe, the spacing of Grouting Pipe is little
In 2m, by Grouting Pipe pressure injection Fast Setting Cement Slurry liquid in area to be filled；This rapid hardening waterproof special material early strength is strong with final
Spend relatively light water mud and all improve 10-20%；
C. after slip casting completes, grout cures forms grouting and reinforcing body, when grouting and reinforcing body intensity or volume are inadequate, repeats step
a-b。
2. underground engineering pre-pouring grout waterproof, seepage control support technology as claimed in claim 1, it is characterised in that: in step a and step
Between rapid b, add step a ': the area to be filled construction drill in curtain, by bore pressuring injection pressure-air or carry out height
Pressure water jet, rinses well the weak material of filling fracture.
3. underground engineering pre-pouring grout waterproof, seepage control support technology as claimed in claim 2, it is characterised in that: allow on ground to bore
The place in hole, in step a, the construction of curtain is faced down rotary-spraying construction by ground, soft layer or crushed zone is isolated into one and treats
Fill area；Step a ' in, face down from ground and offer boring, to area to be filled pressure injection pressure-air or carry out high pressure by boring
Water jet, rinses well the weak material of filling fracture.
4. underground engineering pre-pouring grout waterproof, seepage control support technology as claimed in claim 1, it is characterised in that: do not allow on ground
The construction area of boring, in step a, curtain of constructing in ground in tunnel excavation, curtain is by soft layer or crushed zone
Being isolated into an area to be filled, the quantity of area to be filled is one or more, and each area to be filled is all individually isolated by one group of curtain.
5. underground engineering pre-pouring grout waterproof, seepage control support technology as claimed in claim 3, it is characterised in that: when completing step c
After, when needing to repeat step b, the gradually intensification that Grouting Pipe is inserted to construction area.
6. underground engineering pre-pouring grout waterproof, seepage control support technology as claimed in claim 3, it is characterised in that: when completing step c
After, need repeat step b time, Grouting Pipe to construction area insert more and more shallow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610206494.8A CN105862725A (en) | 2016-03-31 | 2016-03-31 | Underground construction preliminary grouting waterproof and anti-seepage supporting technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610206494.8A CN105862725A (en) | 2016-03-31 | 2016-03-31 | Underground construction preliminary grouting waterproof and anti-seepage supporting technology |
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| CN105862725A true CN105862725A (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610206494.8A Pending CN105862725A (en) | 2016-03-31 | 2016-03-31 | Underground construction preliminary grouting waterproof and anti-seepage supporting technology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930769A (en) * | 2017-05-07 | 2017-07-07 | 中铁十八局集团有限公司 | One kind is for specific region direction and location grouting strengthening method in the huge talus loose media of macroporosity |
| CN110486053A (en) * | 2019-09-05 | 2019-11-22 | 贵阳建筑勘察设计有限公司 | A kind of urban track traffic shallow tunnel fault of construction treatment construction method |
| CN114263163A (en) * | 2021-12-29 | 2022-04-01 | 成都大学 | Grouting reinforcement method for diversion culvert passing through gravel stratum in high and cold regions and construction method |
Citations (6)
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|---|---|---|---|---|
| US5265674A (en) * | 1992-02-20 | 1993-11-30 | Battelle Memorial Institute | Enhancement of in situ microbial remediation of aquifers |
| CN103603689A (en) * | 2013-11-04 | 2014-02-26 | 葛洲坝集团基础工程有限公司 | Curtain grouting construction method for treating mined-out areas |
| CN103806457A (en) * | 2012-11-07 | 2014-05-21 | 北京市市政四建设工程有限责任公司 | Novel construction technology of waterproof curtain |
| CN204186400U (en) * | 2014-10-22 | 2015-03-04 | 中铁二院工程集团有限责任公司 | High-pressure water-enriched goaf ruggedized construction |
| CN104594370A (en) * | 2014-11-27 | 2015-05-06 | 中国电建集团贵阳勘测设计研究院有限公司 | High-pressure combined flushing grouting method and structure in karst region |
| CN105019913A (en) * | 2015-08-03 | 2015-11-04 | 中铁六局集团有限公司 | Base rock uplift region shielding tool-changing in-situ reinforcement method |
-
2016
- 2016-03-31 CN CN201610206494.8A patent/CN105862725A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5265674A (en) * | 1992-02-20 | 1993-11-30 | Battelle Memorial Institute | Enhancement of in situ microbial remediation of aquifers |
| CN103806457A (en) * | 2012-11-07 | 2014-05-21 | 北京市市政四建设工程有限责任公司 | Novel construction technology of waterproof curtain |
| CN103603689A (en) * | 2013-11-04 | 2014-02-26 | 葛洲坝集团基础工程有限公司 | Curtain grouting construction method for treating mined-out areas |
| CN204186400U (en) * | 2014-10-22 | 2015-03-04 | 中铁二院工程集团有限责任公司 | High-pressure water-enriched goaf ruggedized construction |
| CN104594370A (en) * | 2014-11-27 | 2015-05-06 | 中国电建集团贵阳勘测设计研究院有限公司 | High-pressure combined flushing grouting method and structure in karst region |
| CN105019913A (en) * | 2015-08-03 | 2015-11-04 | 中铁六局集团有限公司 | Base rock uplift region shielding tool-changing in-situ reinforcement method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930769A (en) * | 2017-05-07 | 2017-07-07 | 中铁十八局集团有限公司 | One kind is for specific region direction and location grouting strengthening method in the huge talus loose media of macroporosity |
| CN110486053A (en) * | 2019-09-05 | 2019-11-22 | 贵阳建筑勘察设计有限公司 | A kind of urban track traffic shallow tunnel fault of construction treatment construction method |
| CN114263163A (en) * | 2021-12-29 | 2022-04-01 | 成都大学 | Grouting reinforcement method for diversion culvert passing through gravel stratum in high and cold regions and construction method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160817 |
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| RJ01 | Rejection of invention patent application after publication |